I'm easily impressed by new tech and I'll be in line to try drone delivery if it ever comes to Denmark. But when you need drone towers to service the drones there is bound to be a lot of drone traffic in the area and I was just wondering if that issue has been raised in the US media?

Sorta, but most of the chatter is about flying in controlled airspace. But, imo, it's going to be a problem at the consumer-delivery level in urban areas. Think of a large apartment complex ..the pizza & chinese food delivery drones will become warring factions fighting over the heliodroniopad landing area.

3DRobotics announced the world’s first all-in-one Smart Drone called Solo. Smart drones with built-in safeguards and compliance tech, smart accurate sensors, and self-monitoring are the next big revolution in drone technology that would provide new opportunities in transport, military, logistics, and commercial sectors.

If I'm going to make a physical shopping run, I tend to buy as much as possible with the least number of store visits. When I buy online, even if all via done on Amazon, I do just the opposite and split items into individual orders for tracking purposes --and it tends to be strung out over the day (about 7 orders today). I'd guess that the number of vehicle trips is at least twice as much. And that's not taking into account the vast number of items I'm able to find online that I wouldn't even bother to look for locally.